Warp tying machine



June 1, 1954 2,679,676

' M. BR

wARP TYINGMACHINE Filed May 9. 1951 2 Sheets-Sheet l MAX BR WMZ/Ma@ ATTOR NE YS June 1, 1954 Filed May 9, 1951 M. BR

WARP TYING MACHINE 2 Sheets-Sheet 2 NVENTOR.

MAX BR.

5M/MM@ vATTORNEYS Patented June 1, 1954 UNITED STATES PATENT OFFICE signor to Knotex Maschinenbau G. m. b. H., Augsburg-Stadtbergen, Germany, a corpora.-

tion of Germany Application May 9, 1951, Serial No. 225,450

Claims priority, application Germany June 22, 1950 (Cl. ,2S-49) Claims. .1

This invention relates to certain improvements in or relating to warp tying or knotting machines.

l'n warp knotting machines, pairs of brushes or needles (s0-called clips) or mixed groups of brushes and needles are required for dofng or taking off the thread at the top and at the bottom, according as the threads to be knotted are parallelly disposed or crossed. Since in a textile factory a plurality of such take-Gif mechanisms are occurring, the hitherto known knotting machines have been designed in such a way that their thread doing means are variable for each of these four different kinds of doiiing; to this end, especially the needles and brushes are interchangeable. This interchanging, however, is difcult, since the connecting screws to be removed are of poor accessibility, the screws may be lost and require special tools by the handling of which the sensitive parts of the machine may be damaged. Primarily, however, the correct and true adjustment of these parts after their re-fitting is not ensured, so that the machine in many instances after the exchange does not operate satisfactorily.

In order to eliminate these difficulties, a separate non-variable knotting machine has been developed for each of the four thread doing mechanisms occurring, which four knotting machines may operate on the same warp tension device. This, however, requires a larger number of these relatively expensive warp tying machines, whose capacity can hardly ever be utilized fully.

It is an object of the present invention to provide a solution of the problem which avoids the drawbacks of the two known types of machines while combining their advantages.

With this and further objects in view according to the present invention the drive for the movement of the machine over the two warp tension devices and for the changing of the movable carriage of the warp tension device as well as for the control and driving instrumentalities of the real thread guiding mechanism are arranged in a universal frame which is common for all thread doll-lng mechanisms and into which the thread guiding mechanism which is combined into a block, can be inserted so as to be easily interchangeable. Thus all material parts which remain unchanged, such as the drive for the travel of the knotting machine over the two warp e On the other hand, the thread guide mechanism, comprising the feeler, the thread doing mechanism and the thread guide, is manufactured in four different types corresponding to the four different doing methods and can be interchanged in the main frame by a simple manipulation without requiring skilled labor. The satisfactory operation of the machine remains ensured. To this end, it is merely necessary to adjust a mark on the main frame deiining the angular position of the control shaft and a corresponding mark on the block dening the angular position of the driving gear of the thread guide mechanism.

The total cost of such a machine with four interchangeable blocks embodying the diiferent take-01T mechanisms is substantially less than that of four complete machines. A further advantage consists in that the assemblage of the parts combined in the block, i. e., the thread feeler, the thread take-olf mechanism and the thread guide is substantially facilitated compared to the assemblage in a complete universal machine. This is further facilitated by constructing the block in the form of a hollow case accommodating the thread feeler mechanism and at one of its outer sides the thread take-olf and thread feeding mechanisms; in this case, a substantial part of the mechanisms is freely accessible.

It will be understood that my novel machine also offers substantial advantages as regards the cleaning.

Other and further objects, features and advantages of the invention will be pointed out hereinafter and appear in the appended claims forming part of the application;

In the accompanying drawings a preferred embodiment of the invention is shown by way of illustration and not by way of limitation.

Fig. 1 is a perspective front View, from the bottom right hand side, of the common standard or universal main frame,

Fig. 2 is a perspective rear View, from the top left hand side of the block unit of a thread guide mechanism, on a larger scale.

The main frame 2 which is U-shaped and provided with bars l accommodates an electric motor (not visible)A including a gear, and a hand drive, both driving the main shaft 4 through a chain 3. Mounted on the main shaft 4 is the driving pinion 5 and two eccentrcs for the rocking arms E and l. Moreover the driving shaft is operatively connected, through worms and pawls, to the toothed wheel 8 for the feed through the two Warp tension devices and to the toothed wheel 9 for 3 the changing of the movable warp tensioning carriage. Furthermore, the main frame 2 bears the thread gripper IIJ and the knotter II. A guide I 2 serves for the reception of the interchangeable block I3.wh'ich bears bylits recess FHI-,on thesupport I5 Varranged iin the main frameand bythe face I6 of the bar I'I on the bridge I8 arranged` in the main frame; said bridge being formed with a slot I9 in which is engaged the threadedv bolt of the bar I'I which is locked by swinging the bar I'I protruding throughva slot :"ZI yofit'h'e front shield 22 of the block.

The block I3 bears the drivingro'd Z3 vrfor 'the thread feeler which serves to feel out, in a wellknown manner not shown in detail,f-the-position "-15 'which'is also' well-knoWn-and not showninfdetail,

in the .train of the feed gear '.8 and/or of the 'changing gear "9.

The block I3 lmoreover bears .,theithread take- 'oii mechanism which is eitherprcvidedwith two needles (so-called Clips) .orwithtwolbrushes (in case of crossedthreads) .or Withazneedleon the top sideand a brushonthebottomside or with a brush` on the-top .side Aanda-needle on the bottom side (mixed .,group) fsuchy Varrangements being wellknown. and not-shown-:in detail. ,This mechanism, rwhichain thecase illustratedis provided with cross slides controlled through-eccentric cams 262f'I,..isdrivenby .thedriving-rgear-ZB meshing inassembled-,condition with the pinion li. The marks used for the-correctmeshing engagement on assemblage ofthe .block .andthe mainframe are. not `shown in' detail.

`The threadguidei), whichsser-ves vtoufeed the threads to .the -threadgripper It0, isi-moved by 'the driving. ,rod 30.

vrEach* 1ofthe .two drivingrodsf23-.Aand 3.9 has .a link arm 3| 'orr32 -which lbyitsirecesseszl: or '38 can beeasily hooked into :orh'outv'ofithe `rocker arms -Bf or 1,- respectively.

vWhile the inventionz'has meen-'described in 'detail with respect `to -a preferred example 'and embodiment of ,f Ath-e .inventic'inx` it'will .'b'e 'understood by those skilled in the art after/understanding they inventionthatrvariousfchanges and modifications may be #made without "departing from the spirit and scope of the invention-and itis :ntended,itherefore,-to 'Coverall-such changes and 'modifications in the `appended claims.

What is claimed is:

1. In block-type warptying'textile apparatus adapted rfor effecting any ofaplurality of .diierentkinds of `doiiingoperations and having war-p tension means," thread guidemeans, thread'feeler means, 'thread take-'oif.m'eans, thread feeding means, Ythread gripper means, and thread knotting means, the combination 'comprising .a main frameymain'drive 'mechanism for all said means mounted 'on said main "frame, a detachable .unit for each said diierentdoflingoperationsieach of said detachable units including the .operative components 'of said thread .feeler means, said thread `ta'ke-oil;mea1'1s, and said threadfeeding means, locking; means for attaching ,a vselected oneof said detachable units to said main frame adjacent "said Fdriving v mechanism, .and Apower transmission means in eachfsaid detachable unit and 'on said drive mechanism for cooperative f 4 detachable units in operating position upon said main frame for driving said operative components in said detachable unit.

2. Block-type warp tying textile apparatus yadapted for effecting any ofia'plurality of differentkinds of dofng operations and having warp tension means, thread guide means, thread feeler "means, thread take-off means, thread feeding Vmeans,- rthread gripper means, and thread knottingr means, the combination comprising a main 4frame,-afmotormounted on said main frame for l drivingall'said means, a main drive shaft connectedto saidmotor, rocker arm and cam means,

mounted on said drive shaft for transmitting motunrfromisaid motor to said thread feeler means and .said thread feeding means, gear means connected to said drive shaft for transmitting power from said motor to said thread takeeoffrrmeans and said warp tension means, a detachable unit for each of said different dong operations, means :.fori detachably `mounting a selectedoneofzsaid detachable units on rsaid main .frame sadjacent sadfdrive shaftyeach of said detachab1e-units including thread .take-off means for Vone rif-:said zdiierent-doing operations and .said feeler, feeding, andfitensioning means, :lever means:,in-feach :said-,detachable `unit for detachable operati-ve :engagement iwith-'said rocker farm andicam means onsaid main drive shaft, and gear :means iin each said detachable unit for detachable operative Vengagement with said gear means-on fsaidwmain `drive shaft.

.3. Block-type warp ftying textile `apparatus `adapted for` eifectinganyLof a plurality of 'different kindsno-:dong'operationsand having warp tensionmeans;threadguidemeans, thread feeler means, ythreadwtake-:ofl means, thread feeding means,:threaicl'grippenmeana and 'thread knotting -means,'zthe'combination comprising a main framewa motor: mounted .'on 'said main 'frame 'for driving allfsaid'im'eans, :a main fdrive shaft 'connectedito: saidanotor, :rocker arm and cam means mounted "on said drive shaft 'for transmitting motion from said motor to said thread feeler means .and said thread feeding means, gear means fcormected .to fsaid main drive shaft for transmitting -power 'from `said motor to said threaditake-'ofi fmeans "and said warp tension means, Iasdetachableunit for each of said different fdomng'operation's, means "for detachably nrountingeach'ofsaid'detachable units singly on saidmainframe adjacentfsai'd drive'shaft, each of said fdetachable'units including thread takeo'ff'means'for one'o'fisaid vdierent doing operations and said 'feeler, feeding, and tensioning meansjleverfmeans in eachsaid detachable .unit forfdetachable operative engagement with said rocker 'arm-and 'cam 'means on said main drive shaft, gear means in each saidv detachable unit for detachableengagement with said gear means on'said vmain drive'shaft, and.control levers in each said detachable-unit actuated by said gear means for controlling the .operation of warp tensioning means onsaid main frame.

4.'E[n block-type warp. tying textile apparatus having a mainframe and main ,drive means mounted "thereon for effectingthe mechanical steps of a warp tying operation, a detachable unit comprising thread feeler means, thread takeoff meansandthread feeding means, locking means'for mounting saiddetachableunit on said main. frameadjacent .said ,drive mechanism, and power 4transmission means yin-said` detachable unit having detachable Yoperative engagement with engagement therebetween with said one of said Said main lirvepmeansto effect vIDDWEI tramSIllS- aovaeve oi means, thread feeler means, thread tension# ing means, vand thread feeding means mounted in a separate detachable unit, the combination comprising a main frame for said apparatus,

motor means mounted on said main frame for driving all said means, a main drive shaft mounted on said main frame operatively connected to said motor means, rocker arm and cam means on said drive shaft for operative engagement 6 shaft for engagement with said detachable unit transmitting power from said motor to said thread take-off means and said thread tension means in said detachable unit, locking means on said main frame for receiving and detachably engaging said detachable unit, and control levers on -said main frame actuated by cooperating means in said detachable unit for controlling 'f said thread tensioning means, whereby a detachable unit for each said dofiing operation may be detachably and operatively engaged with said rocker arm, cam, gear, and lever means for driving and controlling all said means in said detachable unit from said single motor and main with said detachable unit transmitting motion 15 drive shaft on said main frame.

from said motor means to said thread feeler means and said thread feeding means in said unit, gear means connected to said main drive No references cited. 

